Finding the Fourth Proportional to 166,499.36, 229,773.84 and 91,049.12

Step by Step Solution

1. Step 1: Write the proportion equation
   166,499.36 : 229,773.84 = 91,049.12 : x
2. Step 2: Convert to fraction form
   166,499.36/229,773.84 = 91,049.12/x
3. Step 3: Cross multiply
   166,499.36x = 229,773.84 × 91,049.12
4. Step 4: Simplify right side
   166,499.36x = 20,920,705,931.02
5. Step 5: Solve for x
   x = 20,920,705,931.02/166,499.36
6. Step 6: Final answer
   x = 125,650.37